The students absolutely loved this unit! They were engaged and excited about what they were learning. It addresses first grade CA science standards, but facilitates learning similar to common core standard requirements, because it requires students to answer open ended questions, and requires students to learn facts, but use critical thinking to analyze, predict, and discuss outcomes. Thank you so much for your interest, this was a fun unit to put together, and I truly hope you enjoy it! :) Please feel free to leave me comments and feedback!